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<html>
  <head>
    <title>Vimium Options</title>
    <script src="lib/utils.js"></script>
    <script src="lib/keyboard_utils.js"></script>
    <script src="lib/dom_utils.js"></script>
    <script src="lib/clipboard.js"></script>
    <script src="content_scripts/link_hints.js"></script>
    <script src="content_scripts/vomnibar.js"></script>
    <script src="content_scripts/vimium_frontend.js"></script>
    <style type="text/css" media="screen">
      body {
        font-family:"helvetica neue", "helvetica", "arial", "sans";
        width:640px;
        margin:10px auto;
      }
      a, a:visited { color:blue; }
      #optionsTableWrapper {
        width:490px;
        border:1px solid red;
      }
      .example {
        font-size: 12px;
        color:#555;
        margin-left:20px;
      }
      .caption {
        margin-right:10px;
        min-width: 130px;
      }
      td {
        padding:5px 0;
        padding-bottom: 8px;
      }
      td#mappingsHelp {
        padding:20px 0;
      }
      textarea#excludedUrls {
        width:490px;
        min-height:100px;
      }
      textarea#userDefinedLinkHintCss {
        width:342px;
        min-height:100px;
      }
      textarea#keyMappings {
        width:342px;
        min-height:100px;
      }
      #status {
        margin-left:10px;
        font-size:80%;
      }
      /* Make the caption in the settings table as small as possible, to pull the other fields to the right. */
      td:nth-child(1) {
        width:1px;
        white-space:nowrap;
      }
      #buttonsPanel {
        /* This should match the width of #excludedUrls + 5px of padding to move the buttons to the right. */
        width:495px;
        text-align:right;
        margin-top:18px;
        margin-right:-10px;
      }
      #showHelpDialogMessage {
        width:495px;
        font-size:15px;
      }
      .help {
        position:absolute;
        right:-280px;
        width:280px;
      }
      tr.advancedOption {
        display:none;
      }
      input:read-only {
        background-color: #eee;
        color: #666;
      }
      /* Boolean options have a tighter form representation than text options. */
      td.booleanOption { font-size: 12px; }
    </style>
  <link rel="stylesheet" type="text/css" href="vimium.css" />

  <script type="text/javascript">
  $ = function(id) { return document.getElementById(id); };
  var bgSettings = chrome.extension.getBackgroundPage().Settings;

  var editableFields = ["scrollStepSize", "excludedUrls", "linkHintCharacters", "userDefinedLinkHintCss",
                        "keyMappings", "filterLinkHints", "previousPatterns", "nextPatterns", "hideHud"];

  var canBeEmptyFields = ["excludedUrls", "keyMappings", "userDefinedLinkHintCss"];

  var postSaveHooks = {
    keyMappings: function (value) {
      commands = chrome.extension.getBackgroundPage().Commands;
      commands.clearKeyMappingsAndSetDefaults();
      commands.parseCustomKeyMappings(value);
      chrome.extension.getBackgroundPage().refreshCompletionKeysAfterMappingSave();
    }
  };

  function initializeOptions() {
    populateOptions();

    for (var i = 0; i < editableFields.length; i++) {
      $(editableFields[i]).addEventListener("keyup", onOptionKeyup, false);
      $(editableFields[i]).addEventListener("change", enableSaveButton, false);
      $(editableFields[i]).addEventListener("change", onDataLoaded, false);
    }

    $("advancedOptions").addEventListener("click", openAdvancedOptions, false);
    $("showCommands").addEventListener("click", function () {
      showHelpDialog(
        chrome.extension.getBackgroundPage().helpDialogHtml(true, true, "Command Listing"), frameId);
    }, false);
  }

  function onOptionKeyup(event) {
    if (event.target.getAttribute("type") !== "checkbox" &&
        event.target.getAttribute("savedValue") != event.target.value)
      enableSaveButton();
  }

  function onDataLoaded() {
    $("linkHintCharacters").readOnly = $("filterLinkHints").checked;
  }

  function enableSaveButton() { $("saveOptions").removeAttribute("disabled"); }

  // Saves options to localStorage.
  function saveOptions() {
    // If the value is unchanged from the default, delete the preference from localStorage; this gives us
    // the freedom to change the defaults in the future.
    for (var i = 0; i < editableFields.length; i++) {
      var fieldName = editableFields[i];
      var field = $(fieldName);

      var fieldValue;
      if (field.getAttribute("type") == "checkbox") {
        fieldValue = field.checked;
      } else {
        fieldValue = field.value.trim();
        field.value = fieldValue;
      }

      // If it's empty and not a field that we allow to be empty, restore to the default value
      if (!fieldValue && canBeEmptyFields.indexOf(fieldName) == -1) {
        bgSettings.clear(fieldName);
        fieldValue = bgSettings.get(fieldName);
      } else
        bgSettings.set(fieldName, fieldValue);

      $(fieldName).value = fieldValue;
      $(fieldName).setAttribute("savedValue", fieldValue);

      if (postSaveHooks[fieldName]) { postSaveHooks[fieldName](fieldValue); }
    }
    $("saveOptions").disabled = true;
  }

  // Restores select box state to saved value from localStorage.
  function populateOptions() {
    for (var i = 0; i < editableFields.length; i++) {
      var val = bgSettings.get(editableFields[i]) || "";
      setFieldValue($(editableFields[i]), val);
    }
    onDataLoaded();
  }

  function restoreToDefaults() {
    for (var i = 0; i < editableFields.length; i++) {
      var val = bgSettings.defaults[editableFields[i]] || "";
      setFieldValue($(editableFields[i]), val);
    }
    onDataLoaded();
    enableSaveButton();
  }

  function setFieldValue(field, value) {
    if (field.getAttribute('type') == 'checkbox')
      field.checked = value;
    else {
      field.value = value;
      field.setAttribute("savedValue", value);
    }
  }

  function openAdvancedOptions(event) {
    var elements = document.getElementsByClassName("advancedOption");
    for (var i = 0; i < elements.length; i++)
      elements[i].style.display = (elements[i].style.display == "table-row") ? "none" : "table-row";
    event.preventDefault();
  }
  </script>

  </head>

  <body onload="initializeOptions()">
    <h1>Vimium - Options</h1>
    <table style="position:relative">
      <tr>
        <td class="caption">Scroll step size</td>
        <td>
          <input id="scrollStepSize" type="text" style="width:50px" />px
        </td>
      </tr>
      <tr>
        <td colspan="3">
            Excluded URLs<br/>
            <div class="help">
              <div class="example">
                e.g. http*://mail.google.com/*<br/>
                This will disable Vimium on Gmail.<br/><br/>
                Enter one URL per line.<br/>
              </div>
            </div>
            <textarea id="excludedUrls"></textarea>
        </td>
      </tr>
      <tr>
        <td colspan="3">
          <a href="#" id="advancedOptions">Advanced options &raquo;</a>
        </td>
      </tr>
      <tr class="advancedOption">
        <td class="caption">Custom key<br/>mappings</td>
        <td id="mappingsHelp" verticalAlign="top">
          <div class="help">
            <div class="example">
              <!-- TODO(ilya/philc): Expand this and style it better. -->
              Enter commands to remap your keys. Available commands:<br/>
              <div style="margin-left:10px;margin-top:5px">
                map j scrollDown<br/>
                unmap j<br/>
                unmapAll<br/>
                " this is a comment<br/>
                # this is also a comment<br/>
              </div>
              <a href="#" id="showCommands">Show available commands.</a>
            </div>
          </div>
          <textarea id="keyMappings" type="text"></textarea>
        </td>
      </tr>
      <tr class="advancedOption">
        <td class="caption">Characters used<br/> for link hints</td>
        <td verticalAlign="top">
            <div class="help">
              <div class="example">
                The characters placed next to each link after typing "F" to enter link hinting mode.
              </div>
            </div>
            <input id="linkHintCharacters" type="text" style="width:150px" />
        </td>
      </tr>
      <tr class="advancedOption">
        <td class="caption">CSS for link hints</td>
        <td verticalAlign="top">
          <div class="help">
            <div class="example">
              The CSS used to style the characters next to each link hint.<br/><br/>
              Note: these styles are used in addition to and take precedence over Vimium's
              default styles.
            </div>
          </div>
          <textarea id="userDefinedLinkHintCss" type="text"></textarea>
        </td>
      </tr>
      <tr class="advancedOption">
        <td class="caption"></td>
        <td verticalAlign="top" class="booleanOption">
          <div class="help">
            <div class="example">
              After typing "F" to enter link hinting mode, this option lets you type the text of a link
              to select it.
            </div>
          </div>
          <label>
            <input id="filterLinkHints" type="checkbox"/>
            Use the link's name and numbers for link hint filtering
          </label>
        </td>
      </tr>
      <tr class="advancedOption">
        <td class="caption"></td>
        <td verticalAlign="top" class="booleanOption">
          <div class="help">
            <div class="example">
              The Heads-Up Display appears when typing into text boxes.
            </div>
          </div>
          <label>
            <input id="hideHud" type="checkbox"/>
            Hide the Heads Up Display (HUD)
          </label>
        </td>
      </tr>
      <tr class="advancedOption">
        <td class="caption">Previous Patterns</td>
        <td verticalAlign="top">
            <div class="help">
              <div class="example">
                Vimium will match against these patterns when using the "navigate to the previous page"
                command.
              </div>
            </div>
            <input id="previousPatterns" type="text" style="width:320px" />
        </td>
      </tr>
      <tr class="advancedOption">
        <td class="caption">Next Patterns</td>
        <td verticalAlign="top">
            <div class="help">
              <div class="example">
                Vimium will match against these patterns when using the "navigate to the next page" command.
              </div>
            </div>
            <input id="nextPatterns" type="text" style="width:320px" />
        </td>
      </tr>
    </table>

    <div id="buttonsPanel">
      <button id="restoreSettings" onclick="restoreToDefaults()">Restore to Defaults</button>
      <button id="saveOptions" disabled="true" onclick="saveOptions()">Save Options</button>
    </div>

    <br/>

    <div id="showHelpDialogMessage">
      To view all available shortcuts, type <span style="font-weight:bold">?</span> to show the Vimium help dialog.
    </div>
  </body>
</html>
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